Add historical supp_fam IM_max param
Add historical supp_fam IM_max param

SophieIPP/openfisca-france,benjello/openfisca-france,antoinearnoud/openfisca-france,SophieIPP/openfisca-france,antoinearnoud/openfisca-france,benjello/openfisca-france,sgmap/openfisca-france,sgmap/openfisca-france